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Chapter 7: BIOS
IOH 1 PCIe Port Bifuracation Control
This submenu allows the user to confi gure the following 6 PCIe Port Bifurcation
Control settings for the IOH 1 PCI-Exp port. This feature determines how to
distribute the available PCI-Express lanes to the PCI-E Root Ports.
IOU1-PCIe Port
This feature allows the user to set the PCI-Exp bus speed between IOU1 and
PCI-e port. The options are x4x4 and x8.
Port 1A Link Speed
Select GEN1 to enable PCI-Exp Generation 1 support for Port 1A. Select GEN2
to enable PCI-Exp Generation 2 support for Port 1A. Select GEN3 to enable PCI-
Exp Generation 3 support for Port 1A. The options are GEN1, GEN2, and GEN3.
IOU2 - PCIe Port
This feature allows the user to set the PCI-Exp bus speed between IOU2 and
PCIe port. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16, and Auto.
Port 2A Link Speed
Select GEN1 to enable PCI-Exp Generation 1 support for Port 2A. Select GEN2
to enable PCI-Exp Generation 2 support for Port 2A. Select GEN3 to enable PCI-
Exp Generation 3 support for Port 2A. The options are GEN1, GEN2, and GEN3.
IOU3 - PCIe Port
This feature allows the user to set the PCI-Exp bus speed between IOU3 and
PCIe port. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16, and Auto.
Port 3A Link Speed
Select GEN1 to enable PCI-Exp Generation 1 support for Port 3A. Select GEN2
to enable PCI-Exp Generation 2 support for Port 3A. Select GEN3 to enable PCI-
Exp Generation 3 support for Port 3A. The options are GEN1, GEN2, and GEN3.
QPI Confi guration
Current QPI Link
This item displays the current status of the QPI Link.
Current QPI Frequency
This item displays the current frequency of the QPI Link.
7-9
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